So I've noticed the audio in my car isn't great. Standard speakers are starting to fart. I'm running in through the HU which is an appradio 2. Sufficient amping for speakers. Question; what speakers would people recommend for the doors? Secondly, with an empty spare wheel space in the boot; it's ideal for a sub. What have people made/put in the to add a bit of oomph to the sound quality. I'm not looking at spending loads but would like something a little nicer than what's currently there. Pics and comments welcomed.